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LM4905MM from NS,National Semiconductor

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LM4905MM

Manufacturer: NS

1 Watt Audio Power Amplifier

Partnumber Manufacturer Quantity Availability
LM4905MM NS 171 In Stock

Description and Introduction

1 Watt Audio Power Amplifier The LM4905MM is a power amplifier manufactured by National Semiconductor (NS).  

### **Specifications:**  
- **Type:** Audio Power Amplifier  
- **Package:** 8-Pin MSOP (MM)  
- **Output Power:** 1.1W (into 8Ω at 5V)  
- **Supply Voltage Range:** 2.2V to 5.5V  
- **THD+N (Total Harmonic Distortion + Noise):** 1% (typical)  
- **Shutdown Current:** 0.01μA (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Gain:** Fixed (internally set)  

### **Descriptions and Features:**  
- Designed for portable audio applications.  
- Low quiescent current (4mA typical).  
- No external output coupling capacitors required.  
- Improved pop-and-click circuitry for smooth power-up/down transitions.  
- Thermal shutdown protection.  
- Short-circuit protection.  
- Space-saving MSOP package.  

This amplifier is commonly used in devices like mobile phones, PDAs, and portable media players.

Application Scenarios & Design Considerations

1 Watt Audio Power Amplifier

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